Interfacial reactions and zigzag groove strengthening of C/C composite and Rene N5 single crystal brazed joint

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

13 Scopus Citations
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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)11605-11610
Journal / PublicationCeramics International
Volume41
Issue number9 (Part B)
Online published30 May 2015
Publication statusPublished - Nov 2015

Abstract

C/C composites are brazed in vacuum to the Rene N5 single crystal superalloy using the AgCuTi filler metal with the flat and zigzag triangular groove interfaces. The structure of the C/C/TiC/Ag(s.s)+Cu(s.s)+Ti(Cu,Ni)/Ti(Cu,Ni)2+Ti(Cu,Ni)3+Ti(Cu,Ni)2/Ni(s.s)/(Cu,Ni)+Ag(s.s)/Rene N5 is formed at the joint interface. The shear strength of the joint with the zigzag triangular groove interface is improved greatly compared to that of the joint with a flat interface. The improvement stems from the reduced residual stress, extended joint area, and enhanced pinning effect.

Research Area(s)

  • C/C composites, Rene N5, Brazing, Microstructure, Mechanical property, CARBON-CARBON COMPOSITES, CU-CLAD-MOLYBDENUM, MECHANICAL-PROPERTIES, METAL, MICROSTRUCTURE, ALUMINA, ALLOYS, COPPER, TITANIUM, TI